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| Criterion |  Architecture C4 Model |  Facilitation Decision Jam |  Engineering Fault Isolation |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | When a decision is stuck, Decision Jam loosens the knot through structured separation of problem, idea, and selection. The format creates movement without jumping prematurely at the first seemingly elegant answer. | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 1-4 h | 60-90 min | 30-180 min | 60-120 min |
Participantsdifferent | 1-5 | 4-10 | 1-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Problem Cluster, Prioritized Challenge, Experiment | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | ArchitectureCommunicationVisualization | FacilitationDecisionProblem solvingWorkshop | TroubleshootingDiagnosisEngineering | ArchitectureCommunicationStakeholdersCanvas |